Collapsible cup



FIG. 1 is a front perspective view of a collapsible cup showing our new design.

FIG. 2 is a top plan view thereof.

FIG. 3 is a front elevation view thereof, the rear elevation view being a mirror image thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a left side elevation view thereof; and,

FIG. 6 is a right side elevation view thereof.

The broken lines in the figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a collapsible cup, as shown and described. 